3v4l.org

run code in 300+ PHP versions simultaneously
<?php print("Original: "); print(ini_get('memory_limit')); ini_set('memory_limit', -1); print(", New: "); print(ini_get('memory_limit')); print("\n"); $x = "123456789ABCDEF"; while (true) $x .= $x; ?>

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.4.130.0370.00650.71
8.4.120.0540.01153.39
8.4.110.0440.01355.27
8.4.100.0560.01051.88
8.4.90.0490.01053.71
8.4.80.0730.00351.84
8.4.70.0540.01351.21
8.4.60.0610.00751.80
8.4.50.0580.01151.57
8.4.40.0660.01051.62
8.4.30.0190.01355.25
8.4.20.0370.01751.64
8.4.10.0580.01050.70
8.3.260.0470.01249.78
8.3.250.0330.00751.78
8.3.240.0610.01249.63
8.3.230.0550.01349.64
8.3.220.0450.01551.77
8.3.210.0460.00949.56
8.3.200.0540.01349.40
8.3.190.0460.01450.04
8.3.180.0610.01049.57
8.3.170.0520.01351.89
8.3.160.0420.01349.41
8.3.150.0420.01350.07
8.3.140.0580.01749.70
8.3.130.0130.00351.47
8.3.120.0310.01451.68
8.3.110.0410.00351.27
8.3.100.0400.00350.50
8.3.90.0640.01349.51
8.3.80.0390.00350.27
8.3.70.0580.00750.54
8.3.60.0480.01050.47
8.3.50.0650.01349.91
8.3.40.0270.01736.77
8.3.30.0380.01936.82
8.3.20.0230.00339.82
8.3.10.0130.01040.61
8.3.00.0160.00339.59
8.2.290.0530.01353.25
8.2.280.0460.01351.14
8.2.270.0570.01351.05
8.2.260.0590.01050.42
8.2.250.0360.00649.44
8.2.240.0070.01051.82
8.2.230.0520.00349.27
8.2.220.0320.01050.41
8.2.210.0680.01349.45
8.2.200.0450.00751.13
8.2.190.0650.00749.58
8.2.180.0620.01050.28
8.2.170.0370.01136.86
8.2.160.0240.01738.34
8.2.150.0180.00637.16
8.2.140.0170.00738.37
8.2.130.0160.00738.46
8.2.120.0150.00739.36
8.2.110.0150.00938.31
8.2.100.0290.00335.52
8.2.90.0140.00735.77
8.2.80.0200.00036.63
8.2.70.0150.00435.43
8.2.60.0220.00035.51
8.2.50.0110.00735.86
8.2.40.0070.00736.76
8.2.30.0200.00037.27
8.2.20.0130.00636.25
8.2.10.0190.00437.14
8.2.00.0130.00637.07
8.1.330.0480.00949.14
8.1.320.0330.00851.07
8.1.310.0260.01351.06
8.1.300.0600.00049.16
8.1.290.0410.00650.74
8.1.280.1010.01350.37
8.1.270.0220.00339.81
8.1.260.0150.00939.99
8.1.250.0250.00038.15
8.1.240.0190.00938.80
8.1.230.0250.00636.14
8.1.220.0100.01036.47
8.1.210.0160.00335.09
8.1.200.0140.00735.13
8.1.190.0130.00735.14
8.1.180.0180.00434.81
8.1.170.0180.00335.34
8.1.160.0160.00336.90
8.1.150.0160.00636.71
8.1.140.0140.00338.35
8.1.130.0160.00337.98
8.1.120.0110.00735.24
8.1.110.0100.01035.20
8.1.100.0120.00635.17
8.1.90.0150.00735.27
8.1.80.0090.00935.29
8.1.70.0140.00735.24
8.1.60.0150.00735.33
8.1.50.0180.00435.37
8.1.40.0220.00635.33
8.1.30.0180.00435.46
8.1.20.0140.01035.30
8.1.10.0310.00750.38
8.1.00.0320.00650.37
8.0.300.0170.01750.09
8.0.290.0360.00049.68
8.0.280.0260.01051.18
8.0.270.0310.01350.04
8.0.260.0250.01152.71
8.0.250.0310.00649.68
8.0.240.0290.00349.81
8.0.230.0220.01049.48
8.0.220.0360.00049.57
8.0.210.0290.00349.48
8.0.200.0270.00749.64
8.0.190.0230.01049.72
8.0.180.0200.01349.63
8.0.170.0320.00649.49
8.0.160.0160.01649.50
8.0.150.0390.00049.60
8.0.140.0270.01049.61
8.0.130.0910.016136.20
8.0.120.0230.01049.50
8.0.110.0260.00749.46
8.0.100.0300.00349.66
8.0.90.0300.01049.59
8.0.80.0510.03849.59
8.0.70.0140.01849.39
8.0.60.0210.01149.50
8.0.50.0230.01049.57
8.0.30.0600.02749.62
8.0.20.0640.07449.70
8.0.10.0250.00749.58
8.0.00.0660.04149.60
7.4.330.0850.016136.09
7.4.320.0270.01049.17
7.4.300.0270.00749.01
7.4.290.0320.00649.20
7.4.280.0230.02049.04
7.4.270.0270.01049.03
7.4.260.0220.01349.02
7.4.250.0200.01349.21
7.4.240.0320.00249.16
7.4.230.0260.00749.15
7.4.220.0200.01048.95
7.4.210.0640.02849.16
7.4.200.0270.00749.23
7.4.130.0680.06349.35
7.4.120.0980.04649.16
7.4.110.1780.112139.02
7.4.100.2030.113139.30
7.4.90.1830.127139.19
7.4.80.1900.131139.13
7.4.70.3320.248139.21
7.4.60.1900.104139.01
7.4.50.1230.083139.08
7.4.40.1610.111139.27
7.4.00.1100.066137.75
7.3.330.0270.01048.86
7.3.320.0790.028135.93
7.3.310.0220.01349.06
7.3.300.0260.00648.80
7.3.290.0770.02549.02
7.3.280.0530.02648.98
7.3.260.0740.04149.08
7.3.240.0690.04148.99
7.3.230.0570.04349.02
7.3.210.1790.102139.11
7.3.200.2130.126138.97
7.3.190.2240.100139.02
7.3.180.1760.116139.31
7.3.170.1360.137139.02
7.3.160.1760.106139.08
7.3.100.1640.094137.59
7.3.90.1710.094137.42
7.3.80.1630.112137.59
7.3.70.1770.122137.34
7.3.60.1810.095137.28
7.3.50.1530.091137.53
7.3.40.1430.108137.47
7.3.30.1410.108137.49
7.3.20.2000.102137.57
7.3.10.1890.112137.42
7.3.00.2270.088137.40
7.2.330.2030.122139.29
7.2.320.1940.095138.90
7.2.310.1770.092139.25
7.2.300.2320.111139.15
7.2.290.1390.129139.36
7.2.230.1420.099137.49
7.2.220.1550.129137.61
7.2.210.1450.104137.63
7.2.200.1980.109137.63
7.2.190.1640.101137.50
7.2.180.1580.099137.58
7.2.170.1450.101137.59
7.2.160.1620.099137.47
7.2.150.1810.104137.67
7.2.140.2070.116137.70
7.2.130.2040.116137.71
7.2.120.1810.105137.64
7.2.110.2280.113137.63
7.2.100.2090.116137.47
7.2.90.2280.099137.75
7.2.80.1930.110137.64
7.2.70.2190.105137.68
7.2.60.2250.097137.47
7.2.50.2000.108137.57
7.2.40.1570.125138.02
7.2.30.2090.088138.06
7.2.20.1810.111137.98
7.2.10.1870.108137.89
7.2.00.2000.108138.03
7.1.320.2370.100136.72
7.1.310.2130.095136.60
7.1.300.2180.107136.63
7.1.290.1700.096136.45
7.1.280.1820.108136.60
7.1.270.1740.109136.69
7.1.260.1940.122136.65
7.1.250.1880.127136.69
7.1.240.2530.131136.39
7.1.230.2100.111136.47
7.1.220.2030.106136.48
7.1.210.2100.111136.57
7.1.200.1850.110136.63
7.1.190.1930.121136.50
7.1.180.1810.116136.47
7.1.170.2210.104136.47
7.1.160.1800.120136.77
7.1.150.1940.094136.97
7.1.140.1730.098136.91
7.1.130.1960.103136.95
7.1.120.2000.102136.95
7.1.110.2060.093136.71
7.1.100.2130.102136.92
7.1.90.1850.114136.86
7.1.80.1600.116136.91
7.1.70.1930.121136.77
7.1.60.1980.091136.82
7.1.50.1950.095136.88
7.1.40.1890.113136.80
7.1.30.1980.098137.08
7.1.20.1820.107137.10
7.1.10.1890.094137.23
7.1.00.2140.101137.11
7.0.330.1950.116136.25
7.0.320.1960.117136.35
7.0.310.2180.086136.25
7.0.300.2110.097136.04
7.0.290.1820.115136.60
7.0.280.1590.112136.68
7.0.270.2330.102136.52
7.0.260.2060.102136.65
7.0.250.1880.118136.65
7.0.240.1900.085136.49
7.0.230.1820.106136.47
7.0.220.1750.117136.65
7.0.210.1700.101136.56
7.0.200.1850.101136.62
7.0.190.1660.114136.65
7.0.180.2310.099136.77
7.0.170.2230.098136.75
7.0.160.1730.099136.93
7.0.150.1700.102136.92
7.0.140.1770.091136.79
7.0.130.1930.108137.00
7.0.120.2340.103136.94
7.0.110.1990.098136.83
7.0.100.1980.096136.90
7.0.90.1810.093137.01
7.0.80.2030.088136.83
7.0.70.1660.104136.79
7.0.60.1510.098136.96
7.0.50.1670.101137.06
7.0.40.1990.083136.99
7.0.30.1930.092136.99
7.0.20.2660.093136.98
7.0.10.1820.111136.79
7.0.00.1830.094136.86
5.6.400.2220.145254.62
5.6.390.2080.144254.76
5.6.380.2170.153254.81
5.6.370.2200.145254.73
5.6.360.2320.135254.28
5.6.350.2110.144254.56
5.6.340.2140.131254.51
5.6.330.1920.149254.58
5.6.320.2550.154254.59
5.6.310.2500.138254.54
5.6.300.1910.147254.56
5.6.290.2070.161254.67
5.6.280.2540.130254.66
5.6.270.2400.141254.81
5.6.260.2030.156254.55
5.6.250.2070.152254.44
5.6.240.2360.129254.67
5.6.230.2270.150254.61
5.6.220.2430.143254.54
5.6.210.2070.138254.48
5.6.200.1950.133254.62
5.6.190.2200.151254.51
5.6.180.2300.137254.68
5.6.170.2330.130254.52
5.6.160.2220.151254.47
5.6.150.2330.127254.55
5.6.140.2150.139254.54
5.6.130.2090.164254.60
5.6.120.2260.143254.67
5.6.110.2190.158254.65
5.6.100.2220.152254.60
5.6.90.2080.157254.48
5.6.80.2430.128254.51
5.6.70.2000.146254.47
5.6.60.2000.142254.39
5.6.50.2130.155254.49
5.6.40.2110.145254.61
5.6.30.2220.140254.63
5.6.20.2360.128254.61
5.6.10.2210.159254.59
5.6.00.2270.143254.50
5.5.380.2210.144254.58
5.5.370.2280.127254.48
5.5.360.2330.130254.45
5.5.350.2170.120254.68
5.5.340.2250.144254.56
5.5.330.2250.149254.57
5.5.320.2250.144254.52
5.5.310.2340.148254.45
5.5.300.2230.145254.37
5.5.290.2190.139254.53
5.5.280.2040.145254.49
5.5.270.2080.164254.52
5.5.260.2240.128254.76
5.5.250.2200.148254.29
5.5.240.2180.146254.46
5.5.230.2370.124254.53
5.5.220.2240.169254.46
5.5.210.2020.143254.48
5.5.200.2280.137254.64
5.5.190.2470.126254.57
5.5.180.2150.139254.50
5.5.170.2410.129254.50
5.5.160.2130.135254.59
5.5.150.2170.143254.47
5.5.140.2100.134254.58
5.5.130.1970.143254.42
5.5.120.2230.141254.57
5.5.110.2220.134254.57
5.5.100.2350.137254.46
5.5.90.2270.141254.52
5.5.80.2360.123254.64
5.5.70.2350.138254.23
5.5.60.2280.147254.40
5.5.50.2100.161254.46
5.5.40.2550.131254.47
5.5.30.2160.152254.50
5.5.20.2170.145254.49
5.5.10.1940.138254.37
5.5.00.2260.146254.41
5.4.450.2170.134251.05
5.4.440.2020.147251.23
5.4.430.2090.136251.24
5.4.420.2320.133251.10
5.4.410.2420.139251.01
5.4.400.2090.144250.94
5.4.390.2160.142251.04
5.4.380.2190.129251.17
5.4.370.2190.125251.11
5.4.360.2110.142251.21
5.4.350.1940.139251.13
5.4.340.1990.134251.11
5.4.330.1950.140250.97
5.4.320.2230.132251.08
5.4.310.2220.125250.96
5.4.300.2250.143250.90
5.4.290.2240.116250.95
5.4.280.2260.139251.03
5.4.270.2210.134251.05
5.4.260.2230.136250.93
5.4.250.2200.145251.03
5.4.240.2430.126251.00
5.4.230.2140.148251.05
5.4.220.2370.140251.00
5.4.210.2300.140250.98
5.4.200.2120.133250.82
5.4.190.2450.123251.02
5.4.180.1990.147250.96
5.4.170.2160.124250.95
5.4.160.1940.140251.01
5.4.150.2260.128251.00
5.4.140.2630.140251.02
5.4.130.2370.137250.99
5.4.120.2070.144251.04
5.4.110.2490.128251.21
5.4.100.2320.132251.03
5.4.90.2010.124251.05
5.4.80.2040.136250.96
5.4.70.2020.133251.17
5.4.60.2400.164251.11
5.4.50.2340.126251.17
5.4.40.1960.137251.04
5.4.30.2090.132251.20
5.4.20.1840.139251.05
5.4.10.2090.125251.01
5.4.00.2110.129251.22
5.3.290.2000.148250.87
5.3.280.2280.118250.84
5.3.270.2200.131250.93
5.3.260.1970.140250.83
5.3.250.2200.134250.99
5.3.240.2320.146250.84
5.3.230.2630.143250.85
5.3.220.2250.142250.78
5.3.210.2270.120250.75
5.3.200.2160.112250.78
5.3.190.2170.133250.74
5.3.180.1960.167250.98
5.3.170.1950.144250.98
5.3.160.2430.140250.96
5.3.150.2050.143250.92
5.3.140.2230.148250.90
5.3.130.2200.124250.93
5.3.120.2350.132250.97
5.3.110.2070.140250.91
5.3.100.2110.134250.91
5.3.90.2160.139250.95
5.3.80.2130.118250.80
5.3.70.1770.146250.75
5.3.60.2260.127250.68
5.3.50.2420.134250.68
5.3.40.2060.127250.87
5.3.30.2420.150250.80
5.3.20.2130.119250.74
5.3.10.2110.152250.47
5.3.00.1920.132250.36
5.2.170.2130.149249.87
5.2.160.2080.140249.83
5.2.150.2210.128249.80
5.2.140.2220.132249.71
5.2.130.2040.138249.83
5.2.120.1950.136249.72
5.2.110.2030.130249.69
5.2.100.2050.121249.73
5.2.90.1980.132249.68
5.2.80.2030.134249.74
5.2.70.2000.150249.77
5.2.60.2180.135249.54
5.2.50.2180.132249.70
5.2.40.2450.148249.74
5.2.30.2000.142249.71
5.2.20.1840.157249.58
5.2.10.1760.161249.53
5.2.00.1930.132249.20
5.1.60.1960.137248.59
5.1.50.2160.131248.39
5.1.40.1940.152248.72
5.1.30.2010.150248.81
5.1.20.2210.134248.68
5.1.10.2410.131248.64
5.1.00.2180.132248.46
5.0.50.2270.143247.65
5.0.40.2140.126247.45
5.0.30.2260.147247.41
5.0.20.2000.147247.37
5.0.10.2360.116247.21
5.0.00.1990.140247.28
4.4.90.3100.186245.24
4.4.80.2970.187245.49
4.4.70.2970.205245.40
4.4.60.3320.187245.35
4.4.50.2880.213245.34
4.4.40.3310.201245.43
4.4.30.3410.208245.43
4.4.20.3380.203245.50
4.4.10.3340.197245.34
4.4.00.3350.175245.14
4.3.110.2840.208245.17
4.3.100.3210.215245.20
4.3.90.3300.193245.19
4.3.80.3010.205245.08
4.3.70.3180.228245.16
4.3.60.3190.206245.17
4.3.50.3280.226245.09
4.3.40.3170.194245.29
4.3.30.3080.195244.49
4.3.20.3100.208244.37
4.3.10.2800.211244.68
4.3.00.2770.185244.61

preferences:
33.96 ms | 403 KiB | 5 Q